This 56 slide power point presentation describes matter, the atom, the subatomic particles (the proton, neutron, and electron), atomic numbers, atomic mass, the elements, isotopes, electron shells, chemical compounds, ionic bonds, covalent bonds, and the use of subscripts in molecules. It is illustrated and animated to best show what an atom is and what it is made of on the 8th, 9th, and/or 10th grade level. Additionally, the power point includes a 42 slide review. This presentation could support a unit or chapter discussion of the atom as well as serve as a review for chemistry or physical science. This could be used in physical science, general science, biology, or chemistry.